Route 131 continues southeastward into Southbridge, where it crosses the Quinebaug River.

The toll road was established as part of a direct route from Providence to Springfield.

At the Rhode Island line, the road continued east as the West Glocester Turnpike (modern U.S. Route 44).

It went through the village of Quaddick, Thompson center, North Grosvenordale, and Quinebaug.

The northern portion was designated as SR 874, an unsigned state road.